简单多线程+委托+事件

今天写个个小程序.需要用到多线程.久了没有用,很模糊,现在花20分钟记录下.怕以后又忘记了.

写的时候.变量命名就没有过多考虑了,代码挺简单.就不加注释了.

 

 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;

namespace MultThread_Dlg
{
    public partial class Form1 : Form
    {
        delegate void DgNum(string num);
        DgNum dgnum = null;


        delegate void DlgNum(string num);
        event DlgNum eventdlgNum = null;
        public Form1()
        {
            InitializeComponent();
            dgnum = new DgNum(DoNum);
            eventdlgNum += new DlgNum(DoeventdlgNum);
            userControl11.dgClikeNode += new UserControl1.DGClikeNode(userControl11_dgClikeNode);//事件只能+=
        }


        #region "委托多线程"
        private void DoNum(Object str)
        {
            textBox1.Text = (string)str;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Thread td = new Thread(GetNum);
            td.Start();
        }
        private void GetNum()
        {
            for (int i = 0; i < 100000; i++)
            {
                this.Invoke(dgnum, i.ToString());
            }
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            System.Environment.Exit(-1);
        }
        #endregion

        #region "事件的使用"
        void DoeventdlgNum(object num)
        {
            textBox2.Text = num.ToString();
        }
        private void button2_Click(object sender, EventArgs e)
        {
            Thread td = new Thread(EventNum);
            td.Start();

        }

        private void EventNum()
        {
            for (int i = 0; i < 100000; i++)
            {
                this.Invoke(eventdlgNum, i.ToString());//
            }
        }
         
        void userControl11_dgClikeNode(string str)
        {
            MessageBox.Show(str);
        }
        #endregion
       
       



    }
}

用户自定义控件使用委托

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;

namespace MultThread_Dlg
{
    public partial class UserControl1 : UserControl
    {
        public delegate void  DGClikeNode(string str);
       public  event DGClikeNode dgClikeNode = null;
        public UserControl1()
        {
            InitializeComponent();
        }

        private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
        {
            if (dgClikeNode != null)
            {
                dgClikeNode(e.Node.Text);
            }
        }
    }
}

附上源码链接地址:https://files.cnblogs.com/xyong/MultThread_Dlg.zip

ps:多次点击new出的新线程也会阻塞主线程?